71B/EMU71 + 9114B error - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: 71B/EMU71 + 9114B error (/thread-114661.html) |
71B/EMU71 + 9114B error - Egan Ford - 05-27-2007 I am testing a 9114B post-repair and get the following error after a successful copy of a specific file (MATHROM.LEX): HPIL ERR:Not LIF FormatOnce I get this error I cannot read the disk again until I power cycle the drive or initialize the diskette. I am using EMU71 with an HP-IL ISA adapter and a 9114B. Session:
>INITIALIZE :HP9114BPower cycle or initialize and all is well again. What is special about MATHROM.LEX? Could this be isolated to EMU71? Is there any other way to reset the 9114B remotely?
Thanks.
Re: 71B/EMU71 + 9114B error - Howard Owen - 05-28-2007
Quote:
There are several things you can try. Here's what I can think of, in no particular order.
Regards, Re: 71B/EMU71 + 9114B error - J-F Garnier - 05-28-2007 Hi Egan, Strange. I tried the same procedure using Emu71 and the 2 internal drives, without errros. It would be interesting to know if this behavior happens using a real HP-71B as controller, doing "CONTROL OFF" on Emu71 side. I can't do it by myself, my HP9114 battery is out of order, and it's a HP9114A version with a probably older firmware version. I'm not sure CLEAR :HP9114 can reset the fault condition. Maybe ejecting and inserting the floppy disc again can fix it, just it can't be done remotely... J-F
Edited: 28 May 2007, 7:26 a.m.
Re: 71B/EMU71 + 9114B error - Egan Ford - 05-28-2007 Quote:Order does not matter. Tried multiple disks as well. Re: 71B/EMU71 + 9114B error - Egan Ford - 05-28-2007 Quote:Power cycle only, or re init the diskette. Re: 71B/EMU71 + 9114B error - Egan Ford - 05-28-2007 More info. I repaired another two 9114Bs. Neither unit exhibits the same behavior.
Re: 71B/EMU71 + 9114B error - Howard Owen - 05-28-2007 Interesting. I wonder if the firmware levels differ. I have no idea how you could tell.
Regards, Re: 71B/EMU71 + 9114B error - Egan Ford - 05-28-2007 Update. I swaped system boards. The problem follows the drive. I cleaned it and the problem went away. Well sort of...
I cannot reproduce the problem with a 71B, only with EMU71. EMU71 will read it once without error, the 2nd read of only MATHROM (no other file) yeilds a "New Medium" error after the copy. The copies are complete. Edited: 28 May 2007, 2:39 p.m.
Re: 71B/EMU71 + 9114B error - Howard Owen - 05-28-2007 Huh. Assuming there are no firmware bits outside the main board, then there must be a physical flaw/quirk that copying the MATHROM sets up. It's probably independent of head position, unless the file ends up in the same sectors each time. So it has to be in the electromagnetic state of the system. That seems bizarre, but I can't think of another angle. The particular bit patterns in the deadly file must set up magnetic flux that jiggers the read mechanism somehow. Anyone have a less UFO-like explanation?
Regards, |